Preston, R. N. (1972). Historical Oregon: Overland stage routes, old military roads, Indian battle grounds, old forts, old gold mines. Western Guide Pub..
Цитирование в стиле Чикаго (17-е изд.)Preston, Ralph N. Historical Oregon: Overland Stage Routes, Old Military Roads, Indian Battle Grounds, Old Forts, Old Gold Mines. Corvallis, Or.: Western Guide Pub., 1972.
Цитирование MLA (8-е изд.)Preston, Ralph N. Historical Oregon: Overland Stage Routes, Old Military Roads, Indian Battle Grounds, Old Forts, Old Gold Mines. Western Guide Pub., 1972.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.